Buying, selling, renting, mortgages, law and tax, written so you can decide when you finish reading
Spend in order: prevent the fall, then detect it, then call for help. A fall for an older person rarely ends in a graze, so a few hundred baht of sensor lighting is worth more than a fall-detection watch costing tens of thousands.
A surge is voltage spiking briefly and it destroys electronics. A sag is voltage staying low for a while and it destroys motors, because a motor draws more current to hold its power, the windings run hotter, and the damage accumulates until they burn out. Different problems, different protection.
They cost a few hundred baht and every brand works the same way, so what makes them useful is where you put them. The five that earn their keep are under the kitchen sink, under the basin, behind the washing machine, near the water heater or pump, and near the air conditioner indoor unit.
The 99 percent on the sign usually means infrared or ultraviolet rejection, which is only part of the energy arriving through the glass. Ask for total solar energy rejection, which counts the heat the glass absorbs and re-radiates inward. And however good the film, external shading always beats it.
Most houses do not, and the reason people think they do is usually wrong. Three phase is not stronger and will not make the air conditioning colder: sockets deliver the same voltage. What it gives is more total load capacity. Before converting, try a larger single phase meter.
Breakers trip on overcurrent and short circuit, which protects the cable from overheating rather than protecting people. What protects people is a residual current device, comparing outgoing with returning current. Many houses in Thailand have breakers on every circuit and no residual current protection at all.
A grid-connected solar system shuts itself down the moment the utility supply fails, so it cannot back-feed a line someone is repairing. Nothing is broken. To use the panels during an outage you need an inverter that can run islanded plus storage, and the battery is sized from the backed-up load, not the array.
Measure the leaf thickness, the distance from edge to handle centre, and check the existing latch before picking a brand, because a lock that will not fit is a measuring failure rather than a brand mistake. And ask first how you get in when the battery dies at ten at night.
Not a breach, if it is on your own property to protect the household, which falls within the exemption in section 4 (1) of the Personal Data Protection Act. The line is not that the camera sees the street: it is pointing into someone else's private space, or using the footage for something other than your own security.
Yes, but it needs a co-owners' resolution, because the car park is common property. What actually stalls these requests is rarely the resolution: it is the building's spare capacity. One charger draws about 7 kW, and ten at once is 70 kW added at the hour every unit switches on the air conditioning.
They detect different things. A PIR motion sensor detects changes in infrared radiation, so it sees movement rather than people. A presence sensor uses radar and picks up movement as small as breathing, so it still sees someone sitting perfectly still.
It cuts it, but not where the sales pitch points. Replacing switches barely moves the bill, because every LED in the house together draws less than a single air conditioner. The real savings come from stopping the air conditioning, water heater and pump running when nobody is using them.
